Hello, Happy World! - Orchestra Of Smiles! Share: Download MP3 Hello, Happy World! more songsView all Listen to Smile! Hello, Happy World! 01:40 Shin Takara Jima (Cover) Hello, Happy World! 01:40 Life is Musical♪♪♪ Hello, Happy World! 01:40 Connect and Smile Hello, Happy World! 01:40 Our Summer's☆Showtime!! Hello, Happy World! 01:40 Let's Samba de Happy! Hello, Happy World! 01:40 Kyu-kurarin (Cover) Hello, Happy World! 01:40 You, Let’s Have Fun ♪ (instrumental) Hello, Happy World! 01:40 Smile, Are You Ready??? (instrumental) Hello, Happy World! 01:40 Thoughtful Harmony (instrumental) Hello, Happy World! 01:40 Similar ArtistsPastel*Palettes Afterglow Poppin'Party Morfonica Roselia Kasumi RAISE A SUILEN Aya Arisa Ichigaya (CAST: Ayasa Ito) Happy Around!